3 Answers
3

Several postings on the Chromium issue tracker, such as this one and this one, suggest that this is because some plugins (such as Flash) are consuming the keystrokes whilst running. Does this happen whilst Flash is running, or can you pinpoint an occasion when it always happens if a certain plugin is loaded?

Thanks! I assume you're right. The websites that I've experienced this problem with were using flash to display content. Is it possible to not make Chrome's flash consume the keystrokes?
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gentmattFeb 22 '12 at 8:04

Not sure, I'm afraid. It looks as though that's expected behaviour. If the plugins, like Flash, get first look at keystrokes they can presumably decide to consume or ignore. If Chromium were to fix it (so that Chrome itself got first look) then this might alter the behaviour of plugins that expected it, or they might never get certain keystrokes at all. The first link I posted has some discussion on what the "correct" course of action might be.
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binarybobFeb 22 '12 at 8:20